Synthesis at the nanoscale of ZnO into poly(methyl methacrylate) and its characterization
Synthesis at the nanoscale of ZnO into poly(methyl methacrylate) and its characterization
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纳米级 ZnO 聚甲基丙烯酸甲酯的合成及其表征
DOI：
10.1007/s00339-014-8554-5
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发表时间：
2014-06
期刊：
影响因子：
--
通讯作者：
Li, Liangbin
中科院分区：
文献类型：
--
作者：
Tao, Jiaojiao;Huang, Ningdong;Qi, Zeming;Li, Liangbin
本文采用一种简单、方便、通用的化学方法制备了PMMA/ZnO纳米复合材料。所制备的PMMA/ZnO纳米复合材料具有无色、高透明度、良好的热稳定性、紫外线屏蔽能力、发光性和均匀性。该化学过程涉及分散在DMAc中的ZnO纳米颗粒与溶解在相同溶剂中的聚甲基丙烯酸甲酯（PMMA）基质的溶液混合。通过X射线衍射、场发射扫描电镜、热重分析、紫外-可见吸收光谱和光致发光光谱等研究了ZnO含量对PMMA基体物理性能的影响。结果表明，纯六方结构的ZnO纳米粒子均匀地分散在PMMA基体中，平均粒径为4-8 nm。一个显着的改善，热性能的观察与掺入1.0wt%的ZnO纳米粒子。所制备的纳米复合薄膜是高度透明的，在其吸收光谱中观察到一个明确的激子峰。室温光致发光光谱的测量表明，在3.28 eV的强烈的近带边发射峰，没有任何结构缺陷的纳米复合膜与填料含量为1.0重量%。
In this paper, PMMA/ZnO nanocomposites have been prepared by a very simple, facile and versatile chemical approach. The prepared PMMA/ZnO nanocomposites possess no color, high transparency, good thermal stability, UV-shielding capability, luminescence and homogeneity. The chemical process involved solution mixing of ZnO nanoparticles dispersed in DMAc with the Polymethylmethacrylate (PMMA) matrix dissolved in the same solvent. The effect of ZnO content on the physical properties of the PMMA matrix is investigated by X-ray diffraction, field emission scanning electron microscopy, thermogravimetric analysis, UV–Vis absorption and photoluminescence spectroscopy. It was found that pure hexagonal ZnO nanoparticles with an average particle size of 4–8 nm were homogeneously dispersed in the PMMA matrix. A significant improvement in thermal properties was observed with the incorporation of 1.0 wt% ZnO nanoparticles. The prepared nanocomposite films are highly transparent and a clear excitonic peak is observed in their absorption spectra. Measurement of room temperature photoluminescence spectra shows intensive near-band edge emission peak at 3.28 eV without any structural defects for a nanocomposite film with a filler content of 1.0 wt%.
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影响因子：
29.4
作者：
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通讯作者：
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影响因子：
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通讯作者：
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通讯作者：
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影响因子：
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作者：
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通讯作者：
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